西南林业大学学报2017，Vol.37Issue(3)：40-46,7.DOI:10.11929/j.issn.2095-1914.2017.03.007
凉水林场长白落叶松种源材性变异分析及优良种源选择
Genetic Variation of Wood Properties and Superior Provenance of Larix olgensis Provenance in Liangshui Forest Farm
摘要
Abstract
The tree height, DBH, timber volume, wood density, crushing strength parallel to grain, bending strength, MOE, the hardness of tangential section, the hardness of diametral plane, the hardness of end surface were analyzed for the superior provenances selection of 31-year-old Larix olgensis from 11 provenances sited in Liangshui forest farm. To select superior provenances, we estimate the variation coefficient and correlation coefficient of L. olgensis. The results showed that tree height ( 4. 90%) and DBH ( 7. 64%) has small variation co-efficient. Other characters have rich variation ( above 10%) . The hardness of diametral plane has the biggest varia-tion coefficient ( 23. 59%) . The results showed that the correlation between tree height, DBH and timber volume among families were significant or extremely significant and positively correlated. The wood density is significantly or very significantly and positively correlated with most mechanical properties. The correlation among most mechanical properties is significantly or very significantly and positively correlated. Combined with the result of principal com-ponent analysis, Muling, Jixi, Xiaobeihu were selected as the superior provenances.关键词
长白落叶松/生长性状/力学性状/优良种源Key words
Larix olgensis/tree growth traits/mechanical properties/superior provenances分类
农业科技引用本文复制引用
于宏影,张含国,刘灵,王千雪,韦睿..凉水林场长白落叶松种源材性变异分析及优良种源选择[J].西南林业大学学报,2017,37(3):40-46,7.基金项目
中国林科院林业新技术所基本科研业务费专项项目 ( CAFINT2015C15) 资助. （ CAFINT2015C15）
